A wire 19 cm long is cut into two pieces. The longer piece is 7 cm longer than the shorter piece. Find the length of the shorter piece of wire

Answer 1

Hi, Justice

Let's name the pieces L= long and S=short

total length = 19cm

L+S= 19

L= S+7

(S+7)+S=19

2S = 19-7

S= 6cm

Answer 2

A wire is cut into 2 pieces: x + y = 19

Let's say y is the longer piece, and x is the shorter piece.

The longer piece is y = x + 7

x + (x + 7) = 19

2x + 7 = 19

2x = 12

x = 6

The shorter piece is 6 cm. The longer piece is 13 cm.